<?php session_start();
if (empty($_SESSION['success'])) {
    header('Location: ../index.php')
    ?>
    <script type="text/javascript">
        window.location.href = "../index.php";
    </script>
<?php
}
?>

<!DOCTYPE html>
<html>
<head>
    <meta content="text/html;charset=UTF-8" http-equiv="Content-Type">
    <title>Admin</title>
    <link type="text/css" href="css/stylesheet.css" media="all" rel="stylesheet"/>
    <script src="js/jquery-1.9.1.js"></script>
    <link rel="stylesheet" href="css/jquery-ui.css"/>
    <script src="js/jquery-ui.js"></script>
    <script type="text/javascript" src="js/ckeditor/ckeditor.js"></script>
    <script type="text/javascript" src="js/jquery.blockUI.js"></script>
    <script type="text/javascript" src="js/main.js"></script>
    <!-- Internet Explorer HTML5 enabling script: -->

    <!--[if IE]>
    <script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
    <style type="text/css">
        .clear {
            zoom: 1;
            display: block;
        }
    <![endif]-->
</head>
<body>
<section class="container">
    <header class="header">
        <section class="left-menu">
            <div class="giohang"><b>Menu</b></div>
            <nav>
                <ul id="main-menu">
                    <li><a href="accountManagement.php">Quản lý tài khoản</a></li>
                    <li><a href="categoryManagement.php">Quản lý danh mục</a></li>
                    <li><a href="productManagement.php">Quản lý sản phẩm</a></li>
                    <li><a href="fileManagement.php">Quản lý file</a></li>
                </ul>
            </nav>
        </section>
    </header>
    <section class="content">

